Derivative Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2011
Derivative [Line Items]
Revenue	$ 280,066	$ 287,684	$ 348,312	$ 251,416	$ 250,413	$ 257,634	$ 299,862	$ 212,360	$ 1,167,478		$ 1,020,269		$ 817,009
Cost of revenue	(99,009)	(99,107)	(114,150)	(88,027)	(88,672)	(88,808)	(99,661)	(78,064)	(400,293)	[1]	(355,205)	[1]	(287,806)
Technology and development expense									(164,859)	[1]	(129,162)	[1]	(93,626)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net									29		0
Notional value of contracts with future start date	40,000								40,000
Notional Amount of Foreign Currency Derivatives	22,412								22,412
Interest Rate Swap Contracts, Assets, Fair Value Disclosure	414				0				414		0
Derivative Liabilities	(273)				0				(273)		0
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net									483		0
Total current and future notional amount	195,000								195,000
General and administrative expense									(110,086)	[1]	(105,190)	[1]	(70,659)
Interest expense, net									5,329		1,679		(239)
Income before income taxes and loss in equity interests									40,732		55,845		91,122
Income tax provision									9,387		11,851		9,013
Net income	2,305	5,866	22,960	(1,696)	3,851	274	31,697	8,172	29,435		43,994		82,109
Interest Rate Swap [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months									193
Notional Amount of Interest Rate Derivatives	155,000								155,000
Derivative, Number of Instruments Held	7								7
Derivative, Underlying Basis									one-month LIBOR
Interest Rate Swap [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, Maturity Date									Jul. 31, 2013
Interest Rate Swap [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, Maturity Date									Mar. 31, 2017
Foreign Exchange Forward [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months									133
Derivative, Inception Date									May 15, 2013
Derivative, Number of Instruments Held	15								15
Derivative, Underlying Basis									Various
Foreign Exchange Forward [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, Maturity Date									Jan. 01, 2013
Foreign Exchange Forward [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, Maturity Date									Sep. 30, 2013
Interest Expense [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net									387		0
Sales Revenue, Goods, Net [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net									280		0
Cost of revenue | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net									(263)		0
Technology and development expense | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net									80		0
General and administrative expense | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net									(1)		0
Fair value, recurring measurements [Member] | Significant other observable inputs (Level 2) [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Interest Rate Swap Contracts, Liability, Fair Value Disclosure	(70)				0				(70)		0
Interest Rate Swap Contracts, Assets, Fair Value Disclosure	344				0				344		0
Fair value, recurring measurements [Member] | Significant other observable inputs (Level 2) [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	70				0				70		0
Foreign Currency Contracts, Liability, Fair Value Disclosure	(203)				0				(203)		0
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative [Line Items]
Income before income taxes and loss in equity interests									418		0
Net income									397		0
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Currency Swap [Member]
Derivative [Line Items]
Revenue									293		0
Cost of revenue									(92)		0
Technology and development expense									27		0
General and administrative expense									1		0
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Interest expense, net									189		0
Income tax provision									$ (21)		$ 0

[1] Share-based compensation is allocated as follows: